OVERHEATING, new radiator & thermostat no help!!!
I have a 1988 GL Wagon 4WD, with an automatic tranny. It boiled over one day going up a mountain pass, and continued to get extremely hot under normal conditions. I had several mechanics look at it, and they recommended replacing the radiator. I took their advice and put in a brand new Napa radiator and new thermostat as well. BUT, it is still overheating!! What's up? I thought it could be the water pump, but again, I've had mechanics tell me it would be loud and noisy, and would be obvious. I haven't heard or noticed anything unusual, so WHAT IS GOING ON???? PLEASE HELP! Thanks.